Home / 256,248,891.40-384,336,012.30-74,477,115.40

Finding the Fourth Proportional to 256,248,891.40, 384,336,012.30 and 74,477,115.40

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Solution

The fourth proportional to 256,248,891.40, 384,336,012.30 and 74,477,115.40 is: 111,704,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,248,891.40 : 384,336,012.30 = 74,477,115.40 : x
  2. Step 2: Convert to fraction form
    256,248,891.40/384,336,012.30 = 74,477,115.40/x
  3. Step 3: Cross multiply
    256,248,891.40x = 384,336,012.30 × 74,477,115.40
  4. Step 4: Simplify right side
    256,248,891.40x = 28,624,237,540,442,924
  5. Step 5: Solve for x
    x = 28,624,237,540,442,924/256,248,891.40
  6. Step 6: Final answer
    x = 111,704,824.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.